Vent protector device for exhaust vents of buildings

A device for rendering impervious to the effects of frozen precipitation, subfreezing temperatures and contacts with external wildlife,

• an intermittently acting external vent pipe of a building, which vent pipe (i) which acts to expel fully from one or more interior regions of said building unwanted fumes and odors and (ii) has been equipped automatically to fully close off external air from entering said building during periods when expulsion of effluents therefrom is not occurring, which device comprises:
• (a) a circular backplate of substantially larger diameter than said vent pipe which backplate (i) has a central opening sized to fit snugly over said vent pipe, (ii) is securely fastened to said vent pipe and (iii) is characterized by the presence throughout its surface area of a number of small, evenly spaced perforations which enable external air to pass through them and
• (b) an upwardly extending, elongated, essentially bell-shaped hood member, the sidewalls of which extend a substantial distance above both (i) the upper end of said vent pipe and (ii) the entire surface of said backplate, which member is securely fastened at its bottom end to said vent pipe and said circular backplate,
• whereby said circular backplate and said essentially bell-shaped hood member coact to shield said vent pipe from (1) freezing or becoming clogged with ice, snow or sleet and (2) from coming into contact with birds, small animals and all insects incapable of moving upward through the small evenly spaced perforations of said backplate.